Answer:
Endothermic reactions are those that absorb energy in the form of heat.
In endothermic reactions the products have more energy than the reagents, this means that they do not occur exponentially.
Also in endothermic reactions is one whose enthalpy value is positive, that is, the system absorbs heat from the environment (ΔH> 0).
Some examples of endothermic reactions
The chemical decomposition of water into hydrogen and oxygen.
The plants' photosynthesis.
The production of ozone.
The decomposition of carbon dioxide to obtain carbon and oxygen.
Decomposition of proteins.
The decomposition of calcium carbonate
